Ask the Experts

Ask the Experts

Network Infrastructure

• How can I prevent collisions on my network?

  Learn about network collisions and how to prevent them with networking expert Chris Partsenidis.  Continue Reading

• What do routers use MAC addresses for?

  Find out what routers do with MAC addresses and why they're needed in this response from routing and switching expert Sudhanshu Gupta.  Continue Reading

• Do multiple router interfaces affect the amount of IP addresses?

  Learn about router interfaces and the assignment of IP addresses in this response from networking expert Chris Partsenidis.  Continue Reading

• Which Cisco router should I get as a starting network pro?

  Learn which Cisco router to invest in as a networking beginner to hone your skills from Cisco certifications expert David Minutella.  Continue Reading

• How to use IPv6 on an IPv4 backbone

  Learn how to use IPv6 on an IPv4 backbone without dual stacking in this expert response from Silvia Hagen.  Continue Reading

• What is a logical network? How do you improve one?

  Learn what logical and physical networks are and how to improve them, in this expert response with networking fundamentals expert, Chris Partsenidis.  Continue Reading

• How can I configure 10 VLANs with 5 unmanaged switches?

  Given a Cisco Layer 3 (L3) switch and 5 unmanaged switches, learn how to create 10 VLANs from our routing and switching expert, Sudhanshu Gupta.  Continue Reading

• How to configure ISDN and backup leases on routers

  Routing expert Sudhanshu Gupta explains how to configure ISDN and backup leases on routers in this expert answer.  Continue Reading

• What is broadcasting and which switch will fix timed-out requests?

  Broadcasting is defined by our routing and switching expert as he explains which network switch resolves time-out requests, in this response.  Continue Reading

• Can routers be configured to send files to appropriate servers?

  Our routing expert explains how to configure your router to send files to assigned servers in this expert response.  Continue Reading

• How do I configure two leased lines in one router?

  Our routing and switching expert explains how to configure two leased lines in one router, in this Ask the Expert answer.  Continue Reading

• How to retrieve passwords from locked laptops

  How can I retrieve passwords from locked laptops? Our networking fundamentals expert answers this question.  Continue Reading

• What can we expect in an 802.11n Wireless LAN standard implementation?

  At what stage is 802.11n implementation in, and what changes can we expect to see with it? Learn about the standard from wireless networking expert Lisa Phifer.  Continue Reading

• Why are IPv6's IP addresses in hexadecimal formatting?

  Why would IPv6 use hexadecimal formatting if it's so user unfriendly, and what sort of workarounds are there to make IP addressing easier? Find out in this expert answer.  Continue Reading

• Understanding VLAN implementation and IP address assignment

  Learn how to create and configure a VLAN in this response from a network administration expert  Continue Reading